Competitive Advantage Period: The Neglected Value Driver
提出竞争优势期（CAP）概念，即公司能在增量投资上获得超额回报的年数，认为它是连接竞争优势与估值的关键，但常被忽视。
Corporation and is an Adjunct Professor at Columbia Business School. Paul Johnson is a Managing Director and Technology Industry Analyst at Robertson Stephens & Company and is an Adjunct Professor at Columbia Business School. Although the notion of competitive advantage has been of unassailable importance in valuation, it is a subject that has not been explicitly addressed in finance textbooks in a way commensurate with its importance. Further, many analysts and strategic planners that adhere to a discounted-cash-flow framework reduce the model's validity by using explicit forecast periods that do not properly reflect competitive advantage. Competitive advantage period (CAP)-the number of years a company is expected to generate excess returns on incremental investments-is critical as it weds competitive advantage (strategy) to valuation (finance). We believe that CAP plays an important role in linking valuation theory and practice.